fix: language.Tag marshalling (#1110)

* fix(searchlimit): increase to 1000

* rafactor: remove unused return

* fix(user): marshalling of language tag

* fix(spooler): shuffle handlers on start

* fix(sql): reduce max open conns from 200 to 25 per pod

* chore(deps): google.golang.org/grpc and github.com/lib/pq

* chore(deps): update github.com/cockroachdb/cockroach-go/v2

internal/user/repository/eventsourcing/model/email.go

@@ -16,8 +16,6 @@ type Email struct {
 
 	EmailAddress    string `json:"email,omitempty"`
 	IsEmailVerified bool   `json:"-"`
-
-	isEmailUnique bool `json:"-"`
 }
 
 type EmailCode struct {